Dynamics of Mangrove Forests of the Mekong Delta (Vietnam) from 1988 to 2018
https://doi.org/10.31857/S2587556620040123
Abstract
The dynamics of the mangrove vegetation area in seven provinces of the Mekong Delta was estimated for the period from 1988 to 2018. For analysis, we used remote sensing data obtained by Landsat satellites (Landsat4 for 1988–1989 and Landsat-8 for 2017–2018). When processing satellite images, the results of the visible (0.53–0.60 μm), near-infrared (0.53–0.60 μm) and short-wave infrared (0.53–0.60 μm) spectral ranges were used. According to the 1988 survey, the mangroves’ area in seven provinces of the Mekong Delta was 111.01 thousand ha; by 2018, the mangroves’ area was reduced by a third–to 75.8 thousand ha. The extinction rate of mangroves over a thirty-year period was about 1% per year. Given the territorial redistribution of mangrove vegetation during this time, the undisturbed sections of the mangrove forest that remained in their former borders had an area of 36.4 thousand ha. The main reasons for the reduction of mangrove vegetation were the replacement of mangroves with aquaculture ponds and coastal abrasion.
About the Authors
Son Ton
Dong Thap University; Moscow Institute of Physics and Technology (National Research University)
Viet Nam
Kaolan, Vietnam
Moscow, Russia
Viet Nam
Kaolan, Vietnam
Moscow, Russia
D. V. Dobrynin
Marine Research Center, Lomonosov Moscow State University
Russian Federation
Moscow
Russian Federation
Moscow
V. O. Mokievsky
Shirshov Institute of Oceanology RAS
Russian Federation
Moscow
Russian Federation
Moscow
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For citations:
Ton S., Dobrynin D.V., Mokievsky V.O. Dynamics of Mangrove Forests of the Mekong Delta (Vietnam) from 1988 to 2018. Izvestiya Rossiiskoi Akademii Nauk. Seriya Geograficheskaya. 2020;84(4):530–540. (In Russ.) https://doi.org/10.31857/S2587556620040123
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